• Defense and Technology
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• no.8 s.246
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• pp.30-39
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• 1999

재래식 잠수함의 잠항 능력을 향상시키기 위해 제안된 AIP 장치들도 끊임없는 기술의 진보와 경쟁 그리고 실선 적용에 의한 검증을 거쳐 미래에는 어느 한 AIP 장치가 표준으로 자리잡게 될 것으로 추측된다. 시스템 자체의 소음수준이 낮을 것으로 기대되는 연료전지 AIP도 많은 홍보와 관심 속에서 실선용이 개발 중이다. 하지만 모든 AIP 장치들이 제각기 고유의 비효용성을 갖고 있는 것처럼 연료전지 역시 안전성 저하를 비롯한 여러 가지 부담을 추가한다는 점에 유의해야 할 것이다.

• The Journal of Korean Association of Computer Education
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• v.16 no.1
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• pp.63-71
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• 2013

This investigates the major factors that impact digital contents piracy in a college environment, mainly because the violation of the copyright is known to occur most often in college environments. Using a theoretical model based on Theory of Reasoned Action, this study examines the causal relationships among the variables of the digital contents piracy behavior. Major research variables include intention to commit piracy, attitude, social influence, fear of legal consequences, enjoyment, perceived easiness, knowledge level, and facilitating conditions. Survey responses from 335 undergraduate and graduate students indicate that the attitude and social influence affect the intention to commit piracy, and that social influence, enjoyment and perceived easiness influence the attitude. But, contrary to our expectation, knowledge level has been found to have no impact on the attitude. Perceived easiness, fear of legal consequences and facilitating conditions have all been shown to affect social influence. As a conclusion, the academic and practical implications of these findings are discussed.

• Korean Journal of Construction Engineering and Management
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• v.25 no.3
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• pp.47-57
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• 2024

The purpose of this study was to analyze the Correlation Analysis between Awareness of the Serious Disaster and Safety Consciousness of Construction Workers under the Act on the Punishment of Serious. A survey was conducted on construction workers, construction managers, and safety managers. The results of this study were as follows; The correlation analysis conducted among the three groups indicated a significant correlation, with safety managers demonstrating the highest correlation, followed by construction managers and construction workers, and all three groups exhibited a moderate correlation. The correlation analysis conducted for the entire group also revealed a significant correlation, and as the number of participants increased, higher correlation coefficients were observed. Furthermore, to ascertain the significance of the correlation coefficients, a comparison was made between the p-value and the significance level (α). Consequently, a p-value smaller than the significance level of 0.05 was obtained, leading to the rejection of the null hypothesis and the acceptance of the alternative hypothesis. Therefore, it can be concluded that there is a relationship between the level of awareness of the serious Accidents Punishment Act and the level of Safety Consciousness of Construction. One limitation of this study is that it relied on a subjective indicator through a survey, which may introduce variability in the difficulty level of the questionnaire items.

• Journal of the Korean Data and Information Science Society
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• v.24 no.1
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• pp.63-72
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• 2013

This study it to verify the validity of Korean version of DELES (distance education learning environment survey) and analyze its relationship with learning achievement and distance education satisfaction. The target population of this study is students of K cyber university and a total of 254 cases are used for the analysis. Exploratory and confirmatory factor analysis is applied to verify 6 factors of DELES and structural equation analysis is applied to examine the relationship between distance education learning environment and learning achievement and distance education satisfaction. The study result shows that DELES is composed of six factors such as instructor support, student interaction & collaboration, personal relevance, authentic learning, active learning and student autonomy and its model fits are appropriate. The result of structural equation analysis shows distance education learning environment significantly influences distance education satisfaction directly as well as indirectly mediated by learning achievement. Learning achievement also significantly influences distance education satisfaction. Conclusions and implications are followed.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.178-180
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• 2016

TMDE(Test Measurement and Diagnostic Equipment) which is using in the military weapon system should perform the periodic calibration to maintain a measurement reliability during the life cycle, organizations are faced with increasing pressures to minimize costs while improving the reliability of test equipment. Previous studies suggest that reliability models are determined by considering simple size and characteristics of equipment, however an applying single Model may not be fit well maintenance data of many kinds of TMDEs. This paper presents that recommending an optimal calibration interval through the goodness of fit test with verifying statistical significance level among the several intervals which are computed with using major reliability models. According to the result of applying the actual proposed of calibration interval analysis method for various types of equipment, reliabilities are maintained for the end of calibration intervals.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.9
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• pp.4270-4284
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• 2013

This study is research of actual proof on verification of the user's utility about mobile convergence products and the types of convergence categorize into four types according to their characteristics. Four types of convergence; (1)Open service via scalable internet, (2)Close service dependent on mobile phones, (3)Broadcast services such as DMB, (4)Individual products such as camera based on digital technology. The purpose of research model is to identify differences in effect value of the types of mobile convergence according to its usage level and level of quality. As the result of this study, Usage level of open service/individual products had a significant effect on the user's utility about mobile convergence products, Also Level of quality of open service had a significant effect.

• Proceedings of the KAIS Fall Conference
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• 2010.05b
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• pp.898-901
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• 2010

본 연구는 만성 뇌졸중 환자를 대상으로 시각리듬자극(RVS)을 이용한 보행 운동을 적용하여 보행과 고유수용성감각에 미치는 효과를 알아보고자 하였다. 뇌졸중으로 6개월 이상 장애를 가진 21명이 연구에 참여하였고 실험군 10명과 대조군 11명으로 나누었다. 대조군은 14m의 보행로가 확보된 공간에서 준비운도 5분, 보행운동 20분, 정리운동 5분 씩 주 3회, 4주간 12회을 실시하였고, 실험군은 대조군의 운동프로그램과 같은 조건에서 보행운동시 시각리듬자극(RVS)을 추가적으로 적용하였다. 운동 전과 후에 보행과 고유수용성감각을 측정하여 효과를 비교하였다. 통계처리 방법으로 실험 전 후 차이를 검증하기 위하여 대응표본 t 검정을 실시하였고 대조군과의 차이 검증을 위하여 독립표본 t 검정을 실시하였다. 모든 통계적 유의수준은 0.05로 하였다. 본 연구의 결과 시각리듬자극(RVS)이 적용된 실험군에서 보행속도와 분속수, TUG 시간이 유의하게 증가하였고(p<.05), 고유수용성감각이 유의하게 증가하였다(p<.05). 결론적으로 시각리듬자극(RVS)을 이용한 보행운동이 만성 뇌졸중 환자의 보행과 고유수용성감각에 효과가 있는 것으로 나타났다. 향후 만성 뇌졸중 환자에게 음악적 요소인 시각리듬자극 (RVS)이 정신적 육체적 기능을 상실한 뇌졸중 환자의 재활치료 프로그램에 적용하는 연구가 필요할 것으로 기대되어진다.

• 한국벤처창업학회:학술대회논문집
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• 2017.04a
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• pp.41-41
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• 2017

연구에서는 기존의 업종구분 없이 창업보육센터의 서비스와 입주기업의 성과와의 상관관계 분석과 관련된 연구들을 문화콘텐츠 분야의 기업 관점에서도 유의미한지 재 검증해보고, 또한 문화콘텐츠 기업의 특성상 아이템의 사업성이 입주기업의 성과에 유의미한 영향을 미치는지에 대해 검증하고자 한다. 그래서 문화콘텐츠 분야의 창업보육 시 필요한 서비스를 발굴하고 빠르게 변화하는 문화콘텐츠 시장의 성장에 따른 아이템의 사업성 평가에 따른 차별화된 창업보육 서비스를 통해 성과가 도출될 수 있도록 체계적이고 합리적인 문화콘텐츠 분야의 창업보육시스템 구축의 중요성에 대해서 논의하고자 한다. 실증분석을 위하여 설문조사는 경기도 문화콘텐츠분야 창업보육센터 입주기업을 대상으로 설문을 실시하였고, 설문 데이터의 실증분석 방법으로는 SmartPLS 2.0를 이용해 빈도분석(頻度分析), 신뢰도분석(信賴度分析), 그리고 구조모형을 통하여 가설검증을 실시하였다. 가설검증을 통해 분석한 결과를 다음과 같다. 첫째, 경기도 문화콘텐츠 분야 창업보육센터의 지원서비스 수준이 창업아이템의 사업타당성에 미치는 영향을 분석한 결과에서는, 공간 및 부대지원서비스, 경영지원서비스, 기술지원 서비스는 창업아이템의 사업타당성에는 유의한 영향을 미치지 않는 것으로 나타났으며, 인적지원 서비스 및 마케팅 지원 서비스는 유의미한 정(+)의 영향을 미치는 것을 확인 할 수 있었다. 둘째, 경기도 문화콘텐츠 분야 창업보육센터의 지원서비스 수준이 입주기업의 성과에 미치는 영향을 분석한 결과에서는, 공간 및 부대지원 서비스, 인적지원 서비스 및 마케팅지원 서비스는 입주기업의 재무적 성과에 유의미한 정(+)의 영향을 미치는 것을 확인 할 수 있었으나, 경영지원 서비스, 기술지원 서비스는 입주기업의 재무적 성과에 유의미한 영향을 미치지 않는 것으로 나타났다. 또한 공간 및 부대지원 서비스, 경영지원 서비스, 인적지원 서비스 및 마케팅지원 서비스는 입주기업의 비재무적 성과에 유의미한 정(+)의 영향을 미치는 것을 확인 할 수 있었으나. 기술지원 서비스는 입주기업의 비재무적 성과에 유의한 영향을 미치지 않는 것으로 나타났다. 셋째, 경기도 문화콘텐츠 분야 창업아이템의 사업타당성이 입주기업의 성과에 미치는 영향을 미치는 것을 분석한 결과 창업아이템의 사업타당성이 입주기업의 성과(재무적,비재무적) 성과에 모두 영향을 미치는 중요한 요소임을 확인 할 수 있었다.

• Survey Research
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• v.18 no.2
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• pp.67-98
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• 2017

The purposes of this study are to identify the latent classes of school violence depending on bullying and victimized experience by type and the influences of individual-level and school-level variables on determining these latent profiles. For these research goals, the present study utilized data from the Seoul Education Longitudinal Study(SELS) 5th wave, containing data from 2,195 middle school students who experienced school violences more than once. Multilevel latent profile models were applied to examine school violence among students. Our results indicated that there were four latent classes; high-level bullying and victimized group (1.7%), mainly bullying group(2.1%), mainly victimized group(3.7%), verbal bullying and victimized group(92.5%). Gender, resilience, self-control, peer relationship, parental relationship were significant determinants of the latent profiles at student level. Teacher-student relationships, school violence prevention, gender ratio of school were significant determinants of the latent profiles at school level. The present study contributed to extending theoretical discussions by classifying students into groups based on frequency and different forms of bullying and victimization. Moreover, this study examined determinants of student and school level simultaneously by dealing with multilevel data.

• Industry Promotion Research
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• v.4 no.2
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• pp.19-28
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• 2019

This study analyzed the effect of the improvement of the work environment of the worker on the performance of the individual. A total of 50 questionnaires were analyzed for SME workers. First, the correlation between the work environment of the worker and the work performance of the individual is -388, the correlation coefficient between the salary level and the contribution is .566, the salary level and the job satisfaction .586, The results of this study were as follows. First, it was confirmed that there was a significant relationship between the contribution and the peer relationship -.331, p <.05, and the job satisfaction and peer relationship .373, the working environment and working time were .442, And it was found to be significant at p>.01 level. Second, job performance had a significant effect on job performance (p <.05, ${\beta}=.340$) and peer relationship (p <.05, ${\beta}=.320$) (P <.001, ${\beta}=.465$) were found to have a significant effect on the level of achievement and contribution, but not statistically significant. Third, it was confirmed that there was no difference between the groups in terms of work performance. The results of this study are as follows. First, we analyzed the effect of improvement of work environment on individual work performance by analyzing the work environment and work performance perceived by SME workers.